Information retrieval (IR) is finding documents / text of an unstructured nature that satisfies an information need from within large collections. favoritefavoritefavoritefavorite ( 1 reviews ) Topic: Information Retrieval
Information Retrieval (IR) is the discipline that deals with retrieval of unstructured data, especially textual documents, in response to a query or topic statement, which may itself be unstructured, e.g., a sentence or even another document, or which may be structured, e.g., a boolean expression. The need for effective methods of automated IR has grown in importance because of the tremendous explosion in the amount of unstructured data, both internal, corporate document collections, and the... Topics: Information Retrieval, "
byCross-Language Evaluation Forum (2000 : Lisbon, Portugal); Peters, C. (Carol)
Cross-Language Information Retrieval and Evaluation: Workshop of the Cross-Language Evaluation Forum, CLEF 2000 Lisbon, Portugal, September 21–22, 2000 Revised PapersAuthor: Carol Peters Published by Springer Berlin Heidelberg ISBN: 978-3-540-42446-8 DOI: 10.1007/3-540-44645-1Table of Contents:Introduction CLIR Evaluation at TREC NTCIR Workshop : Japanese- and Chinese-English Cross-Lingual Information Retrieval and Multi-grade Relevance Judgments Language Resources in Cross-Language Text... Topic: Cross-language information retrieval
Ontologies: A Handbook of Principles, Concepts and Applications in Information SystemsAuthor: Raj Sharman, Rajiv Kishore, Ram Ramesh Published by Springer US ISBN: 978-0-387-37019-4 DOI: 10.1007/978-0-387-37022-4Table of Contents:The Road Toward Ontologies Use of Ontologies for Organizational Knowledge Management and Knowledge Management Systems Ontological Evaluation of Business Models: Comparing Traditional and Component-Based Paradigms in Information Systems Re-Engineering Using Ontologies... Topics: Ontologies (Information retrieval), Semantic Web
Comparative Evaluation of Multilingual Information Access Systems: 4th Workshop of the Cross-Language Evaluation Forum, CLEF 2003, Trondheim, Norway, August 21-22, 2003, Revised Selected PapersAuthor: Carol Peters, Julio Gonzalo, Martin Braschler, Michael Kluck Published by Springer Berlin Heidelberg ISBN: 978-3-540-24017-4 DOI: 10.1007/b102261Table of Contents:Introduction CLEF 2003 Methodology and Metrics Analysis of the Reliability of the Multilingual Topic Set for the Cross Language... Topics: Cross-language information retrieval, Cross-Language information retrieval, Information retrieval,...
A novel content-based heterogeneous information retrieval framework, particularly well suited to browse medical databases and support new generation computer aided diagnosis (CADx) systems, is presented in this paper. Topics: Diabetic retinopathy, heterogeneous information retrieval, information fusion
byBrown-Sica, Margaret S.; Beall, Jeffrey; McHale, Nina
Response time as defined for this study is the time that it takes for all files that constitute a single webpage to travel across the Internet from a Web server to the end user's browser. In this study, the authors tested response times on queries for identical items in five different library catalogs, one of them a next-generation(NextGen) catalog. The authors also discuss acceptable response time and how it may affect the discovery process. They suggest that librarians and vendors should... Topics: online library catalogs, information retrieval, internet searching Source: Information Technology and Libraries 29 no4 214-23 D 2010
With growing amounts of research data it becomes increasingly difficult to handle and maintain them and also get an overview over their structure. When a research project has been going for some years, various types of materials have been collected and stored in various ways and at different places. The purpose of this document is to describe how the body of records of a research project at a Swedish research department during the years 1972-1977 has been organized for the archives. The data... Topics: data filing, information storage, information retrieval, documentation
byMeghana Raut, Nityaspandana Nalamari, Darshana Rane
Measuring the semantic similarity between words is an important component in various tasks on the web such as relationextraction, document clustering, and automatic metadata extraction. Despite the usefulness of semantic similarity measures in theseapplications, accurately measuring semantic similarity between two words (or entities) is still difficult. We propose a method to estimatesemantic similarity using page counts and text snippets retrieved from a web search engine for two words.... Topics: web mining, information retrieval, page counts, snippets
This report is part of a project on content analysis and deals with dictionary construction as basis for statistical analyses of interviews. The generation of lexical data bases consisting of nouns, adjectives and verbs is described and results from experimentation on authentic materials are accounted for. Dictionaries of scaled base forms of adjectives and verbs are compared with truncated items. The purpose is to obtain a perfect match, so that the results can be assigned a scale value for... Topics: content analysis, dictionary, data processing, information retrieval
Book from Project Gutenberg: Zen and the Art of the Internet Library of Congress Classification: TK Topics: Computer networks, Information networks, Information retrieval, Internet Source: http://www.gutenberg.org/ebooks/34
The Cranfield Project was done in a laboratory sphere. In a practical situation, it is impossible to determine how many documents are relevant to a certain question. Although in the Cranfield Project collections of different sizes have been used, these collections do not fulfill the requirements that the small collections are randomly taken from the larger one. On the contrary, all the relevant documents in the small collection are the same as those in the large collection. The research work... Topics: ERIC Archive, Indexing, Information Retrieval, Library Research, Performance, Relevance...
Present day shortcomings in information retrieval are the results of a failure to properly contend with the problem of data representation. The index provides the necessary linkage between a multiplicity of sources and a single receiver. Whether considering the source/document-space interface or the query/index interface, the elements of the underlying communication phenomena are the same: sets of documents, sets of attributes, and sets of relations expressing a connection between documents and... Topics: ERIC Archive, Indexing, Information Retrieval, Information Storage, Information Theory, Models,...
This report evaluates the engineering information services provided by the University of Calgary since implementation of the COMPENDEX (tape service of Engineering Index, Inc.) service using the IBM TEXT-PAC system. Evaluation was made by a survey of the users of the Current Information Selection (CIS) service, the interaction between the system and the users, system performance on the monthly computer runs, and user satisfaction. Costs of running time for some programs and of providing CIS,... Topics: ERIC Archive, Costs, Information Centers, Information Retrieval, Information Science, Information...
This paper reports the results of the testing and use of a batch-mode program, QUERY, in three large computer runs performed by the ERIC (Educational Resources Information Center) Clearinghouse on Teacher Education from March through August 1970. Focus is on the behavior of QUERY as a search tool, not on cost-benefit analysis or comparison with alternative search tools. Section 1, "Findings," contains a description of how QUERY searches the descriptor field of ERIC resumes and the... Topics: ERIC Archive, Computer Programs, Information Retrieval, Information Systems, Performance, Relevance...
Part Three of this five part report on Salton's Magical Automatic Retriever of Texts (SMART) project contains four papers. The first: "Variations on the Query Splitting Technique with Relevance Feedback" by T. P. Baker discusses some experiments in relevance feedback performed with variations on the technique of query splitting. The results indicate that these variations, as tested, offer no significant improvement over previously tried methods of query splitting. Paper two:... Topics: ERIC Archive, Automation, Feedback, Information Retrieval, Online Systems, Relevance (Information...
The retrieval decision problem is considered from the viewpoint of a decision theory approach. A threshold rule based on earlier rules for indexing decisions is considered and analyzed for retrieval decisions as a measure of retrieval performance. The threshold rule is seen as a good descriptive design measure of what a reasonable retrieval system should be able to do. A retrieval mechanism of randomly drawing documents is analyzed to determine the relative strength of the threshold rule. The... Topics: ERIC Archive, Indexing, Information Retrieval, Information Science, Information Systems,...
The main purpose of the experiment was to answer the question whether broad or narrow terms function most effectively in the retrieval of relevant documents. The answer depends on what the user of the retrieval system wants, his wants being expressed in terms of stated precision-recall preference, or by the exact number of relevant documents he wishes to retrieve. Depth of indexing does not contribute significantly to effective retrieval. Documents should be indexed with broad terms to satisfy... Topics: ERIC Archive, Indexes, Indexing, Information Retrieval, Information Science, Information Systems,...
Genetic algorithms (GAs) can be used in information retrieval (IR) to optimize the query "solution”. This paperproposes a GA-based IR algorithm that adjusts the weights of keywords of a query in order to generate an optimal or nearoptimal query vector. In this algorithm, each query is represented by a chromosome. These chromosomes are feed intogenetic operator process: selection, crossover, and mutation to get new population, then, to get better solutions, a localsearch procedure is... Topics: Information, Retrieval, Genetic Algorithm, Query Optimization, Similarity Measures
AUTOMATIC CONTROL THEORY FOR DEVELOPING DISCRETE AUTOMATA, AUTOMATION UNITS AND DEVICES, RELIABLE SYSTEMS, AND STATISTICAL OPTIMIZATION METHODS Topics: INFORMATION SYSTEMS, MANUALS, ON-LINE PROGRAMMING, DATA STORAGE, INFORMATION RETRIEVAL
This set of information sheets on the Educational Resources Information Center (ERIC) is designed for use by persons responsible for instructing potential ERIC users and contributors. Adaptable for reproduction as overhead projection transparencies, the sheets are classified in two dimensions to provide for greater flexibility. The set of 50 sheets includes seven subsets, each on a different subject: 1) The "Thesaurus of ERIC Descriptors" (ERIC's "dictionary" for use in... Topics: ERIC Archive, Educational Resources, Indexes, Information Centers, Information Retrieval, Thesauri
Within many areas and at various levels people are discussing the problem of information and information overflow, at the same time as the need of information is greater than ever before. This report presents the basis for developing a locally anchored I&D-system within a research organisation. Since the basic concept in information processing is "data", the processes or "events" governing the data flow within a research institute are discussed. It is also outlined in... Topics: I&D-system, local communication, psycho-ecology, scientific information retrieval
Polycrystalline CuInS2 films were deposited by aerosol-assisted chemical vapor deposition using both solid and liquid ternary single-source precursors (SSPs) which were prepared in-house. Films with either (112) or (204/220) preferred orientation, had a chalcopyrite structure, and (112)-oriented films contained more copper than (204/220)-oriented films. The preferred orientation of the film is likely related to the decomposition and reaction kinetics associated with the molecular structure of... Topics: INFORMATION RETRIEVAL, SCIENTISTS, PROGRAMMING LANGUAGES, WEBSITES, ENGINEERS, LANGUAGES, MASKS
This fact sheet offers basic instructions on connecting to the ERIC database for individuals who own or have access to a microcomputer and are familiar with ERIC and how to search it through a database terminal. Software, hardware, and telephone line components necesary to make a microcomputer act as a database terminal are outlined. The discussion of software describes the need for a terminal emulator and lists desirable features for terminal software, including the capabilities to print and... Topics: ERIC Archive, Computer Software, Databases, Information Retrieval, Microcomputers,...
byMcClinton, C.; Rondakov, A.; Semenov, V.; Kopehenov, V
NASA has contracted with the Central Institute of Aviation Motors CIAM to perform a flight test and ground test and provide a scramjet engine for ground test in the United States. The objective of this contract is to obtain ground to flight correlation for a supersonic combustion ramjet (scramjet) engine operating point at a Mach number of 6.5. This paper presents results from a flow path performance and thermal evaluation performed on the design proposed by the CIAM. This study shows that the... Topics: INDEXING (INFORMATION SCIENCE), TEXTS, ON-LINE SYSTEMS, INFORMATION RETRIEVAL
Designed to be of assistance to the new ERIC user, this glossary provides brief definitions of more than 60 terms associated with the ERIC data base and the search process. These include titles of indexes, agencies, and acronyms peculiar to ERIC as well as terms used to describe computer search strategy. A directory of ERIC network components--including the 16 clearinghouses-- is also provided. (CWM) Topics: ERIC Archive, Databases, Definitions, Glossaries, Information Networks, Information Retrieval,...
The present guidelines, preliminary in character, are an attempt to facilitate the development and application of a standardized method of multilingual thesaurus construction and to reduce the number of arbitrary variations in thesaurus techniques. In the preparation of these guidelines the approach has been theoretical rather than practical. Following a definition of the multilingual character of a thesaurus, the guidelines list a set of initial conditions stating various contexts under which... Topics: ERIC Archive, Development, Guidelines, Information Retrieval, Lexicography, Multilingualism,...
This custom bibliography from the NASA Scientific and Technical Information Program lists a sampling of records found in the NASA Aeronautics and Space Database. The scope of this topic includes technologies for the space suit of the future, specifically for productive work on planetary surfaces. This area of focus is one of the enabling technologies as defined by NASA s Report of the President s Commission on Implementation of United States Space Exploration Policy, published in June 2004. Topics: SAFETY FACTORS, SAFETY MANAGEMENT, DATA ACQUISITION, NUMERICAL ANALYSIS, INFORMATION RETRIEVAL
bySomerville, Mary A.; Schader, Barbara J,; Sack, John R.
Discoverability is a popular buzzword—ultimately meaning the degree to which scholars can locate the content needed to advance their research and other creative activity. Improved user discovery experiences require heightened collaboration among (1) scholarly publishers and their published authors; (2) search engine developers, database providers, abstracting and indexing services, and academic publishers; (3) electronic resource management and integrated library system vendors; and (4)... Topics: libraries and publishing, learning and scholarship, information retrieval, electronic publishing
...results of a survey of hospitals, planning agencies, social agencies, nursing homes, mental health clinics and local health and welfare departments to determine their willingness to contribute data to a community-wide information system; detailed description of the record keeping and data collecting systems of several Boston hospitals, Blue Cross Blue Shield, the Dept. of Public Welfare and United Community Services; a copy of this item was in the BRA collection.. Topics: Medical care, Information retrieval, Social service, Public welfare
This primer is intended to acquaint public, academic and special librarians with the current state of the art in microform technology. Brief discussion is given of the advantages and disadvantages, economics, reading and printing capabilities, continuous and unitized microforms and the various analogies of microfilm technology to other technology. Suggestions for keeping current are included. (AB) Topics: ERIC Archive, Costs, Information Retrieval, Information Science, Libraries, Microfilm, Microforms
Differences in judged relevance of Educational Resources Information Center (ERIC) abstracts identified by two different information systems were investigated. A national semi-private educational service agency which utilizes mechanical searching of the research literature was one information system, while the other was a regional, Federally-funded agency employing manual searching. Twenty clients reported they found substantially more ERIC abstracts identified by a manual method to be relevant... Topics: ERIC Archive, Automation, Comparative Analysis, Information Retrieval, Information Systems,...
This paper is an extension of "Referential Consulting Networks" which explicated the concept of a network of referential consultants each of whom could "field" questions by: (a) answering them on the basis of his own expertise; (b) answer them with the help of library resources at his command; (c) refer the question to a colleague he judges to be more skilled than he in (a), (b), and (c). The querist, who originates a question of concern to him, is part of this network too.... Topics: ERIC Archive, Conferences, Consultants, Information Networks, Information Retrieval, Library...
Talk given by Dr. Tzanetakis, associate professor of Computer Science at the University of Victoria, Canada about music information retrieval and content-based visualizations at Facebook on June 9th, 2011. Topics: music information retrieval, visualization, audio signal processing, machine learning